{"as_of":"2026-11-03","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Fitted to","items":[{"count":1,"name":"Bellanca 14","note":"","unit":"with this engine series","url":"https://eflight.com/models/bellanca/14"},{"count":1,"name":"Stinson 10","note":"","unit":"with this engine series","url":"https://eflight.com/models/stinson/10"}],"relation":"powers"},{"group":"Where they are","items":[{"count":1,"name":"Montana","note":"","unit":"of these aircraft","url":"https://eflight.com/states/MT"},{"count":1,"name":"Colorado","note":"","unit":"of these aircraft","url":"https://eflight.com/states/CO"}],"relation":"registered in"},{"group":"Analytics","items":[{"count":null,"name":"The fleet by engine type","note":"","unit":"","url":"https://eflight.com/analytics/fleet"},{"count":null,"name":"Every engine series","note":"","unit":"","url":"https://eflight.com/engines"}],"relation":"compared in"}],"graph":"https://eflight.com/graph","graph_index":"https://eflight.com/graph/index.json","license":"https://creativecommons.org/licenses/by/4.0/","node":{"aircraft":2,"horsepower":100,"id":"franklin-4a4100-series","maker":"Franklin","name":"Franklin 4A4100 series","thrust_lb":null,"type":"Piston (reciprocating)","url":"https://eflight.com/engines/franklin-4a4100-series"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}